CN106049506A - APS (Assembled Prestressed Soldier Pile Retaining Structure) and construction method thereof - Google Patents
APS (Assembled Prestressed Soldier Pile Retaining Structure) and construction method thereof Download PDFInfo
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- CN106049506A CN106049506A CN201610539423.XA CN201610539423A CN106049506A CN 106049506 A CN106049506 A CN 106049506A CN 201610539423 A CN201610539423 A CN 201610539423A CN 106049506 A CN106049506 A CN 106049506A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
- E02D2200/1628—Shapes rectangular
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses an APS (Assembled Prestressed Soldier Pile Retaining Structure). The APS is characterized by comprising rigid piles, wherein the rigid piles are assembled and lengthened by equal-strength mechanical attachment joints and implanted into self-solidifying flow plastic soil or pressed into a soft soil layer to form an assembled soldier pile; and the tops of the rigid piles are connected through a precast top beam or a cast-in-situ beam to form an assembled soldier pile structure. The invention further discloses a construction method of the APS. The APS and the construction method thereof have the advantages that the construction operability is strong, the component assembly degree and the construction operation efficiency are high, engineering materials are saved, the construction cost is low, and the project implementation effect is favorable.
Description
Technical field
The present invention relates to technical field of civil engineering, relate in particular to a kind of assembled fender post and construction method thereof.
Background technology
In base pit engineering or slope project, employing campshed building enclosure is a kind of important feature form of foundation pit enclosure, exists
Extensively application from all parts of the world, current campshed is frequently with the shaped steel Soil-cement Wall etc. of bored pile or SMW engineering method.
Bored concrete pile means at engineering site by mechanical hole building, mud off, formation stake holes in foundation soil, and within it
Placing steel reinforcement cage, in-site pouring concrete and the stake that formed, different according to forming hole method, bored concrete pile can be divided into again punching to irrigate
Several classes such as stake, cast-in-situ bored pile and digging hole filling pile.The construction of cast-in-situ bored pile, because of the difference of forms of protective wall selected by it, has mud
Slurry retaining wall mode and full-sleeve are constructed two kinds.Soft soil layer and unstable soil layer use mud off mode construct bored concrete pile pole
It is easily generated the common faults such as constriction, collapse hole, stake holes deflection, thus affects concrete placed under water quality, and a large amount of circulation can be produced
Mud, causes environmental pollution；Although full-sleeve construction technology can avoid mud off, but because of by casing length and run of steel
Impact, difficulty of construction is big, and cost is high, and speed is slow.
The shaped steel Soil-cement Wall of SMW engineering method, H profile steel or steel pipe will be inserted in Soil-cement Wall, will bear
Load combines with antiseepage dash, makes the supporting construction simultaneously having carrying with impervious two kinds of functions.For reducing
Construction costs, the H profile steel being commonly inserted at present or steel pipe are both needed to extract recovery, the most all at its external coating antifriction material, but
Antifriction material have impact on the bond strength of shaped steel and soil cement, can destroy soil cement water-stop curtain during shaped steel is inserted out simultaneously,
Produce again the space of certain volume simultaneously, the protection object closed on is produced the impacts such as disadvantageous deformation.
Going along with sb. to guard him after campshed formed, concrete and the soil cement of pile crown need to abolished, at this position assembling reinforcement and formwork erection, water
Build concrete Guan Liang, scattered campshed is combined into integration.On-the-spot when abolishing concrete pile head and soil cement, noise will be produced
And dust, environment is produced and pollutes.Additionally, hat beam segmentation pours, to take the duration longer, forms more construction joint.Also has excavation
Hat beam space forms the environment to periphery of backbreaking and affects greatly, and the sealing of Guan Liangchu is imitated by the soil cement water-stop curtain excavated
Fruit produces harmful effect.
Therefore engineering circles needs a kind of advantage that can commonly use campshed building enclosure in conjunction with both the above of searching badly, can overcome again
The novel supporting pile structure of its deficiency, but owing to molding and the connectivity problem of precast reinforced concrete pile are solved the most well
Certainly, this novel supporting pile structure is made to be difficult to obtain practical application effect.
Summary of the invention
The technical problem to be solved is, overcome hole quality present in existing bored concrete pile technology poor,
In situ concrete pile stiffness of the body degree is difficult to control under water, produces a large amount of mud to polluting environment, SMW engineering method Shaped Steel be difficult to reclaim and
The problems such as removal process is deformed, construction period is longer, it is provided that a kind of fender post that can assemble at the construction field (site) and executing
Work method.
For reaching above-mentioned purpose, the technical solution used in the present invention is:
A kind of APS assembled supporting pile structure, is characterized in that, including rigid pile, described rigid pile use etc. is mechanically connected by force
Joint assembling spreading, described rigid pile is implanted in self-solidifying stream moulds the soil body or is pressed in Soft Soil Layer, forming assembled campshed；Institute
State rigid pile top to be linked together by prefabricated crown beam or cast-in-place Guan Liang, form assembled piling structure.
Rigid pile pile shaft material is shaped steel, steel and steel concrete or the group of one or both materials of reinforced concrete member
Closing, its cross section is annular, hollow, rectangular or I-shaped.
Self-solidifying stream mould the soil body be at stake position undisturbed soil through churning, stir or displacement of holing mixes the water that is mixed to form of firming agent
Earth body, the solidification soil body, cement mortar body or self-solidifying slurry body, form continuous piling wall body, or independent pile body, and cross section is cylinder
Shape, cylinder occlusion shape or rectangle.
Prefabricated crown beam is reinforced concrete member, rectangular in cross-section, runs through beam what Liang Mianshang was distributed circle or rectangle
Body installing hole, rigid pile is connected with Guan Liang by filling real concrete in stake top anchor bar and installing hole；Prefabricated crown beam passes through two
End jointing forms entirety, and joint form is joggle；Connection reinforcement component is made by shaped steel at joint area.
The construction method of a kind of APS assembled supporting pile structure, comprises the following steps:
(1) self-solidifying stream of constructing on fender post position moulds the soil body
It is to use churning, stirring or boring method to form Soil-cement body, solidified earth stirring body, cement mortar body or self-solidifying
Slurry body, forms cylindrical or cylinder occlusion tee section；
It is to use two-wheel milling stirring or TRD stirring means to form Soil-cement body, solidified earth stirring body, or employing is grabbed
After bucket grooving, perfusion forms cement mortar body, self-solidifying slurry body, forms square-section；
(2) prefabricated crown beam is installed
Prefabricated crown beam is hung in the groove section forming self-solidifying stream and moulding the soil body, beaten by deadweight or dither, will hat
Beam is installed to precalculated position, and the outrigger laid by ground and regulation bolt location are fixed；
(3) assemble and implant or be pressed into rigid pile
Rigid pile is hung to groove section and is installed in the installing hole that prefabricated crown beam is reserved, by deadweight or dither
Beating, the self-solidifying stream overcoming resistance to be implanted to become is moulded in the soil body, and rigid pile is spliced by joint, continues to repeat to hang after splicing
Put splicing to self-solidifying stream and mould the bottom of the soil body, and adjust rigid pile plan-position and mark by location, stake top regulation bolt and outrigger
High；
(4) stake top anchor bar is installed and in space, junction, fills real concrete
When prefabricated crown beam is first installed, by pasting isolation plastic foil at prefabricated crown beam reserving installation hole hole wall, by Guan Liang
Solidified earth in preformed hole is convenient to be removed, and exposes rigid pile stake top, installs anchor bar by stake top anchor hole, then use coagulation
Space between prefabricated crown beam and rigid pile top is filled real by soil；
(5) install or cast-in-situ steel reinforced concrete Guan Liang after prefabricated crown beam
After the self-solidifying stream plastomer solidification in rigid pile stake week, remove the solidified earth of rigid pile top certain depth, then will just
Property stake through prefabricated crown beam reserving installation hole, and anchor bar is installed, then with concrete by prefabricated crown beam on rigid pile stake top
And the space between rigid pile top fills real；
When using cast in situs armored concrete hat beam, also it is installation anchor bar in the reserved anchor hole of stake end,
Then assembling reinforcement formwork erection, cast-in-place concrete.
Beneficial effect: the present invention by the outside self-solidifying stream of pile the most in advance mould that the soil body is inserted into vertically assembling firm
Property stake, and form overall assembled fender post, alternative existing supporting pile structure by top prefabricated crown beam or cast-in-place Guan Liang
With cast-in-place Guan Liang.Site operation of the present invention is workable, component assemblingization degree high, working performance is high, it is possible to ensure structure
Globality and construction quality, reduce construction costs, engineering construction is respond well.
Accompanying drawing explanation
The invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is APS assembled fender post floor map of the present invention；
Fig. 2 is the strong mechanical connecting joint schematic diagrams such as APS assembled fender post rigid pile of the present invention；
Fig. 3-1 lays floor map for APS assembled fender post prefabricated crown beam of the present invention；
Fig. 3-2 lays generalized section for APS assembled fender post prefabricated crown beam of the present invention；
Fig. 4-1 is that APS assembled fender post rigid pile of the present invention implants floor map；
Fig. 4-2 is that APS assembled fender post rigid pile of the present invention implants generalized section；
Fig. 5 is APS assembled fender post prefabricated crown beam jointing floor map of the present invention；
Fig. 6-1 is APS assembled fender post brace type retaining structure generalized section of the present invention；
Fig. 6-2 goes along with sb. to guard him piled anchor pull-type retaining structure generalized section for APS assembled of the present invention.
In figure: 1 outside self-solidifying stream moulds the soil body, 2 internal rigid stakes, 3 prefabricated annular stakes, 4 prefabricated hollow squares
Shape stake, 5 prefabricated I-shaped stakes, 6 cylinders occlusion self-solidifying stream moulds the soil body, 7 equal thickness rectangle self-solidifying streams mould the soil body, 8 machines
Tool jointing, 9 high-strength steel bars, 10 socket joint steel bushings, 11 connect inserted links, 12 epoxy resin, 13 prefabricated crown beams,
14 installing holes, 15 steel outriggers, 16 regulation bolts, 17 H profile steel, 18 anchor bolts, 19 fill real concrete, 20
Prefabricated crown beam joggle, 21 concavo-convex rectangles, 22 concavo-convex trapezoidal, 23 concavo-convex inverted trapezoidals, 24 concavo-convex arcs, 25
Support, 26 anchor poles, 27 isolation plastic foils.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and be easy to understand with effect, below knot
Conjunction is specifically illustrating, and the present invention is expanded on further.
See Fig. 1 to Fig. 6.
APS assembled fender post is moulded the soil body 1, internal rigid stake 2 and prefabricated crown beam 13 by outside self-solidifying stream and is combined, bag
Include: internal rigid stake 2 is precast reinforced concrete structure, steel or steel concrete member；The strong airborne connections such as rigid pile 2 is provided with connect
8, airborne jointing 8 by high-strength steel bar 9, socket joint steel bushing 10, connect inserted link 11 and form, joint uses epoxy resin 12 to fill
Seam；2 tops of rigid pile arrange prefabricated crown beam 13, set rectangle or circular mounting hole 14, prefabricated crown beam 13 two ends in prefabricated crown beam 13
If longitudinal joggle 20, section includes concavo-convex rectangle 21, concavo-convex trapezoidal 22, concavo-convex inverted trapezoidal 23, concavo-convex arc 24 etc.；Prefabricated crown
Beam 13 two sides anchoring H profile steel 17, prefabricated crown beam 13 is connected into whole by the bolt 18 being embedded in prefabricated crown beam by H profile steel 17
Body；Regulation bolt 16 location anchored by the steel outrigger 15 and hat back that are placed in ground when prefabricated crown beam 13 is installed is fixed；
Rigid pile plan-position and absolute altitude is adjusted by location, stake top regulation bolt 16 and steel outrigger 15 when rigid pile 2 is laid；Work as assembling
Formula fender post, when brace type retaining structure, arranges support 25 in hole；When assembled fender post is for the pull-type retaining structure of anchor
Time, hole is outer arranges anchor pole 26.
APS (Assembled Prestessed Soldier Pile Retaining Structure abbreviation), in advance should
Power Row Piles Supporting Structure.
In embodiment, APS assembled fender post Specific construction step is as follows:
(1) self-solidifying stream moulds soil body construction
Churning, stirring or boring method is used to form cylinder occlusion tee section Soil-cement body, solidified earth stirring body, cement
Body or self-solidifying slurry body；
Two-wheel milling stirring or TRD stirring means is used to form square-section Soil-cement body, solidified earth stirring body, or
After using grab chute forming, perfusion forms cement mortar body, self-solidifying slurry body.
(2) prefabricated crown beam is installed
In stake position preformed self-solidifying stream moulds the soil body, lift prefabricated crown beam, beaten by deadweight or dither, will hat
Beam is installed to precalculated position, and adjusts prefabricated crown beam by the regulation bolt of surface-based steel outrigger and hat back anchoring
Absolute altitude and plan-position.
(3) assemble and implant rigid pile
Rigid pile is hung to groove section and is installed in the installing hole that prefabricated crown beam is reserved, by deadweight or dither
Beating, the self-solidifying stream transferring to become is moulded in the soil body, part of cement soil, cement mortar or mud is cemented out simultaneously；Rigid pile
Spliced by joint, continue after splicing to repeat to hang to splice until outer self-solidifying stream is moulded bottom the soil body, and positioned by stake top
Regulation bolt and outrigger adjust rigid pile plan-position and absolute altitude, meet Guan Liang and connect required precision.
(4) repeating above (1), (2), (3) step, construction self-solidifying stream moulds the soil body in advance, and rear prefabricated crown beam of installing, assembling is also
Implant internal rigid stake, by the H profile steel of prefabricated crown beam two sides and the bolt being embedded in prefabricated crown beam, prefabricated crown beam is connected
It is connected into entirety and goes along with sb. to guard him Guan Liang.
(5) after a Zhou Zining stream moulds soil solidification, remove the solidified earth of rigid pile top certain depth, anchoring is installed on stake top
Reinforcing bar, fills real concrete in the installing hole of stake top.
Step described in embodiment (1) peripheral self-solidifying stream is moulded the soil body and is used the stirring of diameter 850mm@1200mm triaxial cement
Stake, cement mixing content 10～25%, the ratio of mud 0.6～2.0, degree of depth 18.5m.
Prefabricated crown beam strength grade of concrete C30, depth of section 600mm, width in step described in embodiment (2)
1200mm, during hat top surface of the beam is installed M24 bolt and is suspended to the Two bors d's oeuveres channel-section steel outrigger on ground, every section of prefabricated crown beam is provided with diameter
800mm installing hole, pastes isolation plastic foil at hole wall.
In step described in embodiment (3), internal rigid stake uses the APS stake of diameter 700mm, wall thickness 100mm, strong concrete
Degree grade C60, single-unit stake long 10m, 8m, rigid pile joint uses the airborne jointing of equal strength.
In step described in embodiment (3), internal rigid stake stake top arranges anchor bar, and anchorage length is 35 times of bar diameters.
In step described in embodiment (4), prefabricated crown beam uses concavo-convex rectangle joggle, and joint insert depth is 300mm, if
Q235 strength grade 300 × 300H shaped steel, H type is just anchored with prefabricated crown beam by 4.6 grades of M20 plain bolts.
Embodiment excavation of foundation pit degree of depth 10m, uses brace type retaining structure, arranges twice horizontal support in foundation ditch.
Excavation of foundation pit deformation monitoring result shows: embodiment foundation ditch cost drops than conventional bored concrete pile building enclosure scheme cost
Low by 20%, the foundation ditch implementation cycle reduces 30d, and foundation pit enclosure structure maximum distortion only 1cm, deformation control of foundation pit is respond well, has
Effect protects the safety of surrounding enviroment.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (5)
1. an APS assembled supporting pile structure, is characterized in that, including rigid pile, described rigid pile with etc. connect by force
Head assembling spreading, described rigid pile is implanted in self-solidifying stream moulds the soil body or is pressed in Soft Soil Layer, forming assembled campshed；Described
Rigid pile top is linked together by prefabricated crown beam or cast-in-place Guan Liang, forms assembled piling structure.
A kind of APS assembled supporting pile structure the most according to claim 1, is characterized in that, rigid pile pile shaft material is type
Steel, steel and steel concrete or the combination of one or both materials of reinforced concrete member, its cross section is annular, hollow, rectangular
Or it is I-shaped.
A kind of APS assembled supporting pile structure the most according to claim 1, is characterized in that, it is in stake that self-solidifying stream moulds the soil body
Position undisturbed soil through churning, stir or hole displacement mix firming agent be mixed to form soil-cement body, solidification the soil body, cement mortar body
Or self-solidifying slurry body, forming continuous piling wall body, or independent pile body, cross section is cylindrical, cylinder occlusion shape or rectangle.
A kind of APS assembled supporting pile structure the most according to claim 1, is characterized in that, prefabricated crown beam is reinforced concrete
Soil component, rectangular in cross-section, run through beam body installing hole what Liang Mianshang was distributed circle or rectangle, rigid pile is anchored by stake top
Fill real concrete in reinforcing bar and installing hole to be connected with Guan Liang；Prefabricated crown beam forms entirety, joint form by two ends jointing
For joggle；Connection reinforcement component is made by shaped steel at joint area.
5. a construction method for APS assembled supporting pile structure, is characterized in that, comprises the following steps:
(1) self-solidifying stream of constructing on fender post position moulds the soil body
It is to use churning, stirring or boring method to form Soil-cement body, solidified earth stirring body, cement mortar body or self-solidifying mud
Body, forms cylindrical or cylinder occlusion tee section；
It is to use two-wheel milling stirring or TRD stirring means to form Soil-cement body, solidified earth stirring body, or employing is grabbed bucket into
After groove, perfusion forms cement mortar body, self-solidifying slurry body, forms square-section；
(2) prefabricated crown beam is installed
Prefabricated crown beam is hung in the groove section forming self-solidifying stream and moulding the soil body, beaten by deadweight or dither, Guan Liang is pacified
Install to precalculated position, and the outrigger laid by ground and regulation bolt location are fixed；
(3) assemble and implant or be pressed into rigid pile
Hang rigid pile to groove section and be installed to, in the installing hole that prefabricated crown beam is reserved, to be beaten by deadweight or dither,
The self-solidifying stream overcoming resistance to be implanted to become is moulded in the soil body, and rigid pile is spliced by joint, continues to repeat to hang after splicing
Splicing to self-solidifying stream moulds the bottom of the soil body, and adjusts rigid pile plan-position and mark by location, stake top regulation bolt and outrigger
High；
(4) stake top anchor bar is installed and in space, junction, fills real concrete
When prefabricated crown beam is first installed, by pasting isolation plastic foil at prefabricated crown beam reserving installation hole hole wall, Guan Liang is reserved
Solidified earth in hole is convenient to be removed, and exposes rigid pile stake top, installs anchor bar by stake top anchor hole, then will with concrete
Space between prefabricated crown beam and rigid pile top fills real；
(5) install or cast-in-situ steel reinforced concrete Guan Liang after prefabricated crown beam
After the self-solidifying stream plastomer solidification in rigid pile stake week, remove the solidified earth of rigid pile top certain depth, then by rigid pile
Through prefabricated crown beam reserving installation hole, and anchor bar is installed on rigid pile stake top, then with concrete by prefabricated crown beam with just
Property stake top between space fill real；
When using cast in situs armored concrete hat beam, also it is installation anchor bar in the reserved anchor hole of stake end, then
Assembling reinforcement formwork erection, cast-in-place concrete.
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| CN201610539423.XA CN106049506B (en) | 2016-07-11 | 2016-07-11 | A kind of APS assembleds supporting pile structure and construction method |
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| CN106759351A (en) * | 2017-01-25 | 2017-05-31 | 山东大学 | A kind of perpendicularity guider and method based on permanent support structure prefabricated tubular pile |
| CN108222019A (en) * | 2018-02-12 | 2018-06-29 | 江苏麦廊新材料科技有限公司 | Assembled Guan Liang and the ecoscape shore protection with the assembled Guan Liang |
| CN108643226A (en) * | 2018-07-30 | 2018-10-12 | 金陵科技学院 | A kind of Retaining Wall and construction method |
| CN110295606A (en) * | 2019-07-05 | 2019-10-01 | 广州穗岩土木科技股份有限公司 | A kind of foundation pit interlocking pile water stop construction method |
| CN110528503A (en) * | 2018-05-23 | 2019-12-03 | 杭州南联地基基础工程有限公司 | Wall construction method is gone along with sb. to guard him in the implantation prefabricated reinforced concrete stake of deep slot type soil-cement |
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| CN114481711A (en) * | 2021-11-26 | 2022-05-13 | 同济大学 | Assembly type pile-plate structure roadbed connecting structure and construction method thereof |
| CN114809005A (en) * | 2022-04-21 | 2022-07-29 | 中交天津港湾工程研究院有限公司 | Construction method for double-wheel milling cement-soil wall composite anchor cable supporting structure |
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